CentOS 7
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Redis : Basic Usage#3
2016/07/20
 
This is the Basic Usage of Redis with "redis-cli" client program.
Following examples are basic one, you can see more commands on Official Site below.
⇒ http://redis.io/commands
[1] This is the basic Usage of Lists.
[root@dlp ~]#
redis-cli -a password
# preppend Value to a List (possible to set multiple values with space)
127.0.0.1:6379> lpush list01 value01 
(integer) 1

# append Value to a List (possible to set multiple values with space)
127.0.0.1:6379> rpush list01 value02 
(integer) 2

# get length of a List
127.0.0.1:6379> llen list01 
(integer) 2

# get specified element of a List
127.0.0.1:6379> lindex list01 0 
"value01"

# get specified range of elements
127.0.0.1:6379> lrange list01 0 1 
1) "value01"
2) "value02"

# change specified element to specified value
127.0.0.1:6379> lset list01 1 value03
OK
127.0.0.1:6379> lindex list01 1 
"value03"

# get the head element and remove it
127.0.0.1:6379> lpop list01 
"value01"

# get the last element and remove it
127.0.0.1:6379> rpop list01 
"value03"

# trim specified range of a List
127.0.0.1:6379> ltrim list01 1 3 
OK

127.0.0.1:6379> lrange list02 0 7 
1) "value01"
2) "test"
3) "value02"
4) "value03"
5) "value04"
6) "test"
7) "value05"
8) "test"

# remove specified number of elements of a List
127.0.0.1:6379> lrem list02 2 test 
(integer) 2
127.0.0.1:6379> lrange list02 0 7 
1) "value01"
2) "value02"
3) "value03"
4) "value04"
5) "value05"
6) "test"
 
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